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Fix a potential(?) nullptr dereference

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This commit is contained in:
Robin Gareus 2017-11-23 10:38:05 +01:00
parent 07f940016c
commit 3009fd7574
1 changed files with 2 additions and 2 deletions
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4
gtk2_ardour/fft_graph.cc
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@ -420,8 +420,6 @@ FFTGraph::draw_scales (cairo_t* cr)
void
FFTGraph::redraw ()
{
Glib::Threads::Mutex::Lock lm (_a_window->track_list_lock);
assert (_surface);
cairo_t* cr = cairo_create (_surface);
@ -433,6 +431,8 @@ FFTGraph::redraw ()
return;
}
Glib::Threads::Mutex::Lock lm (_a_window->track_list_lock);
if (!_a_window->track_list_ready) {
cairo_destroy (cr);
queue_draw ();